Roller rocker arm of an engine



FIG. 1.1 shows a front view of a roller rocker arm for an engine;

FIG. 1.2 shows a back view of the roller rocker arm;

FIG. 1.3 shows a top view of the roller rocker arm;

FIG. 1.4 shows a right side view of the roller rocker arm;

FIG. 1.5 shows a left side view of the roller rocker arm;

FIG. 1.6 shows a top perspective view of the roller rocker arm; and

FIG. 1.7 shows a bottom view of the roller rocker arm.

CLAIM The ornamental design for a roller rocker arm of an engine, asshown and described.